AU2000273153B2 - Fastener bag and fastener device - Google Patents
Fastener bag and fastener device Download PDFInfo
- Publication number
- AU2000273153B2 AU2000273153B2 AU2000273153A AU2000273153A AU2000273153B2 AU 2000273153 B2 AU2000273153 B2 AU 2000273153B2 AU 2000273153 A AU2000273153 A AU 2000273153A AU 2000273153 A AU2000273153 A AU 2000273153A AU 2000273153 B2 AU2000273153 B2 AU 2000273153B2
- Authority
- AU
- Australia
- Prior art keywords
- heat
- packaging bag
- sealed
- bag
- fastening member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 238000004806 packaging method and process Methods 0.000 claims description 170
- 238000007789 sealing Methods 0.000 claims description 27
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 238000010030 laminating Methods 0.000 description 16
- -1 polypropylene Polymers 0.000 description 15
- 238000005520 cutting process Methods 0.000 description 13
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920001684 low density polyethylene Polymers 0.000 description 9
- 239000004702 low-density polyethylene Substances 0.000 description 9
- 229940099514 low-density polyethylene Drugs 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 6
- 229920006267 polyester film Polymers 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 5
- 239000004708 Very-low-density polyethylene Substances 0.000 description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 2
- 239000005025 cast polypropylene Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920006284 nylon film Polymers 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 229920001866 very low density polyethylene Polymers 0.000 description 2
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011140 metalized polyester Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2575—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor the slide fastener providing access to the bag through a bag wall, e.g. intended to be cut open by the consumer
- B65D33/2583—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor the slide fastener providing access to the bag through a bag wall, e.g. intended to be cut open by the consumer the slide fastener being attached to one wall only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
- B65D33/2533—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/66—Inserted or applied tearing-strings or like flexible elements
- B65D75/68—Inserted or applied tearing-strings or like flexible elements extending through wrapper closure or between wrapper layers
Description
DESCRIPTION
FASTENER BAG AND FASTENING DEVICE TECHNICAL FIELD The present invention relates to a fastener bag capable of being easily opened and reclosed, and of being applied to packaging an article therein by an automatic filling and packaging machine, and a fastening device.
BACKGROUND ART Recently, most packaging bags are required to have both a capability to be easily opened and a capability to be reclosed.
The field of automatic filling and packaging, in which operations for filling and packaging an article in a packaging bag are carried out simultaneously, requests a fastener bag having both a capability to be opened and a capability to be reclosed.
A known fastener bag having both a capability to be opened and a capability to be reclosed is made by superposing two packaging sheets, heat-sealing peripheral parts of the superposed packaging sheets, attaching the male fastening member of a fastening device to the inner surface of one of the packaging sheets, and attaching the female fastening member of the fastening device to the inner surface of the other packaging sheet. The male and the female fastening member are disengaged to open the fastener bag, and are reengaged to reclose the fastener bag.
A known easy-to-open fastener bag is formed from a packaging material having a property of facilitating opening the fastener bag, another packaging bag is provided with a notch, anda third known fastener bag isprovidedwitha filament attached to its component sheet.
Although the foregoing fastener bag has both a capability to be opened easily and a capability to be reclosed, a bag making process of making the fastener bag, a filling and packaging process need complicated work because the fastener O bag is made by superposing the two packaging sheets and heat-sealing the C peripheral parts of the packaging sheets. Particularly, automatic filling and O packaging needs a complicated apparatus, requires troublesome work, and have Z significant problems in practical work.
0 5 The present invention has been made in view of the foregoing problems and it is therefore an object of the present invention to provide a fastener bag having both a capability to be opened easily and a capability to be reclosed, and capable of being used for automatic filling on an automatic filling and packaging N machine, and to provide a fastening device.
0 10 Any discussion of documents, systems, acts or knowledge in this N specification is included to explain the context of the invention. It should not be taken as an admission that any of the material formed part of the prior art base or the common general knowledge in the relevant art in or any other country on or before the priority date of the claims herein.
DISCLOSURE OF THE INVENTION According to a first aspect of the present invention, there is provided a fastener bag including a packaging bag having a butt seam formed by folding one sheet of packaging sheet, heat-sealing side parts formed in the butt seam and opposite open ends to be heat-sealed positioned at both ends of heat-sealing side parts; and a fastening device attached to the inner surface of the packaging bag; wherein the fastening device includes separate male and female fastening members, the male fastening member is disposed apart from the butt seam and on one side of the heat-sealed butt seam of the packaging bag, the female fastening member is disposed apart from the butt seam and on the other side of the heat-sealed butt seam of the packaging bag so as to be engage with the male fastening member, and a tear-facilitating means is extended between the male and the female fastening member and one open end of the opposite open ends is heat-sealed after an article is filled in the packaging bag, and other open end of the opposite open ends is heat-sealed before the article is filled in the packaging bag.
According to a second aspect of the present invention, there is provided a fastener bag including: a packaging bag having a butt seam formed by folding one sheet of packaging sheet, heat-sealing side parts formed in the butt seam and opposite open ends to be heat-sealed positioned at both ends of heat-sealing O side parts; and a fastening device attached to a part of the inner surface of the packaging bag on one side of the heat-sealed butt seam; wherein the fastening 0 5 device includes separate male and female fastening members, the male and the female fastening member are disposed with a space therebetween so as to be engaged, and a tear-facilitating means is interposed between the male and the female fastening member and one open end of the opposite open ends is heat- N sealed after an article is filled in the packaging bag, and other open end of the 0 10 opposite open ends is heat-sealed before the article is filled in the packaging bag.
N According to a third aspect of the present invention, there is provided a fastener bag including: a packaging bag having a butt seam formed by folding one sheet of packaging sheet, heat-sealing side parts formed in the butt seam and opposite open ends to be heat-sealed positioned at both ends of heat-sealing side parts; and a fastening device attached to the inner surface of the packaging bag; wherein the fastening device is an integral molding including a male fastening member, a female fastening member and a connecting member, and a tear-facilitating means is combined with the connecting member and one open end of the opposite open ends is heat-sealed after an article is filled in the packaging bag, and other open end of the opposite open ends is heat-sealed before the article is filled in the packaging bag.
According to a fourth aspect of the present invention, there is provided a fastener bag including: a packaging bag having a butt seam formed by folding one sheet of packaging sheet, heat-sealing side parts formed in the butt seam and opposite open ends to be heat-sealed positioned at both ends of heat-sealing side parts; and a fastening device attached to the inner surface of the packaging bag; wherein the fastening device includes separate male and female fastening members, the male fastening member is disposed on one side of the heat-sealed butt seam of the packaging bag, the female fastening member is disposed on the other side of the heat-sealed butt seam so as to engage with the male fastening member, and a cut tape is extended from one to the other end of the packaging bag on a part of the inner surface of the packaging bag between the male and the female fastening member, and is attached to the inner surface of the packaging bag and one open end of the opposite open ends is heat-sealed after an article is filled in the packaging bag, and other open end of the opposite open ends is heatsealed before the article is filled in the packaging bag.
According to a fifth aspect of the present invention, there is provided a fastener bag including: a packaging bag having a butt seam formed by folding one sheet of packaging sheet, heat-sealing side parts formed in the butt seam and opposite open ends to be heat-sealed positioned at both ends of heat-sealing side parts; and a fastening device attached to a part of the inner surface of the packaging bag on one side of a heat-sealed butt seam; wherein the fastening device includes separate male and female fastening members, the male and the female fastening member are disposed with a space therebetween so as to be engaged, and a cut tape is extended from one to the other end of the packaging bag on a part of the inner surface of the packaging bag between the male and the female fastening member, and is attached to the inner surface of the packaging bag and one open end of the opposite open ends is heat-sealed after an article is filled in the packaging bag, and other open end of the opposite open ends is heatsealed before the article is filled in the packaging bag.
It will be convenient to further describe the invention with respect to the accompanying drawings which illustrate preferred embodiments of the fastener bag according to the present invention. Other arrangements of the invention are possible, and consequently, the particularity of the accompanying drawings is not to be understood as superseding the generality of the preceding description of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a rear view of a fastener bag in a first embodiment according to the present invention; Fig. 2 is an enlarged sectional view of the fastener bag shown in Fig. 1; Fig. 3 is a rear view of a fastener bag in a second embodiment according to the present invention; Fig. 4 is an enlarged sectional view of the fastener bag shown in Fig. 3; Fig. 5 is an enlarged sectional view of a fastener bag in a third embodiment according to the present invention; 4a \0 cl Fig. 6 is an enlarged, sectional, perspective view of a fastener bag in a o fourth embodiment according to the present invention; Fig. 7 is an enlarged sectional view of a fastener bag 0 in a fifth embodiment according to the present invention; Fig. 8 is an enlarged sectional view of a fastener bag in a sixth embodiment according to the present invention; Fig. 9 is an enlarged sectional view of a fastener bag in a seventh embodiment according to the present invention; Fig. 10 is an enlarged sectional view of a fastener bag in an eighth embodiment according to the present invention; Fig. 11 is a fragmentary sectional view of a cut tape; Fig. 12 is an enlarged sectional view of a fastener bag in a ninth embodiment according to the present invention; and Fig. 13 is an enlarged sectional view of a fastener bag in a tenth embodiment according to the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described with reference to the accompanying drawings.
Referring to Fig. 1, a fastener bag 1 in a first embodiment according to the present invention includes a packaging bag 2, and a fastening device 3 welded or bonded to the inner surface of the packaging bag 2.
As shown in Figs. 1 and 2, the packaging bag 2 is formed by folding side parts 4a and 4b of a rectangular packaging sheet, joining the folded side parts 4a and 4b such that the inner surfaces thereof are contiguous, heat-sealing the thus joined folded side parts 4a and 4b to form a tubular structure having a back sealed part 5, and heat-sealing the upper and the lower end of the tubular structure to form an upper sealed part 6 and a lower sealed part 7.
Although it is preferably that the packaging sheet is a laminated film, the packaging sheet may be a single film.
Laminated films suitable as the packaging sheet for forming a transparent packaging bag 2 are a laminated film formed by laminating a 20 to 50 [m thick biaxially oriented polypropylene film, and a 20 to 60 Rm thick nonoriented polypropylene film by a laminating process using a 2 to 3 Rm thick dry bonding layer, a laminated film formed by laminating a 9 to 25 tm thick polyester film, and a 25 to 120 [tm thick straight-chain, low-density polyethylene film by a laminating process using a 2 to 3 Rm thick dry bonding layer, and a laminated film formed by laminating a 9 to [Im thick biaxial oriented nylon film, and a 25 to 120 jim thick polyethylene film by a laminating process using a 2 to 3 im thick dry bonding layer. An extruded 12 to 20 [tm thick polyethylene layer may be used as a bonding layer instead of the dry bonding layer.
Laminated films suitable as the packaging sheet for forming an opaque packaging bag 2 are a laminated film formed by laminating a 9 to 25 Rm thick polyester film, a 6 to m thick aluminum foil, and a 20 to 120 pm thick straight-chain low-density polyethylene film by a laminating process using a 2 to 3 Rm thick dry bonding layer, and a laminated film formed by laminating a 9 to 25 pm thick polyester film, a 12 Rm thick aluminum-metallized polyester film, and a 20 to pm thick nonoriented polypropylene film by a laminating process using a 2 to 3 gm thick dry bonding layer. A 12 to 20 im thick extruded polyethylene layer may be used as a bonding layer instead of the dry bonding layer.
Referring to Fig. 2, the fastening device 3 includes a separate male fastening member 8 and a separate female fastening member 9. The male fastening member 8 has a base part 8a attached to a part of the inner surface of the packaging bag 2 onone sideof thebacksealedpart5. Thefemale fastening member 9 has a base part 9a attached to a part of the inner surface of the packaging bag 2 on the other side of the back sealed part The male fastening member 8 and the female fastening member 9 are formed by extruding an olefin resin, such as a polyethylene, a polypropylene or a copolymer of a polyethylene and a polypropylene by an extrusion molding machine. Although the male fastening member 8 and the female fastening member 9 shown in Fig. 2 have each a single engaging part, the same may be provided with two or more engaging parts when necessary.
As shown in Fig. 2, the packaging bag 2 is provided with narrow roughened tear parts 10 in the outer surface of the laminated film forming the packaging bag 2. The narrow roughened tear parts 10 are formed along the back sealed part 5. The roughened tear parts 10 are those provided with scratches not penetrating the laminated film formed by pressing a sand paper against the laminated film. The roughened tear parts 10 are the tear-facilitating means of the packaging bag.
When opening the fastener bag 1, one end of the back sealed part 5 is held between fingers, the back sealed part is pulled away from the surface of the fastener bag 1 to tear the laminated film along bends in the back sealed part provided with the roughened tear parts A method of manufacturing the fastener bag will be described.
A continuous laminated film is cut in a packaging sheet of a length equal to twice the sum of the width of the packaging bag 2 shown in Fig. 1 and the length of the back sealed part 5 of the packaging bag 2 to form the packaging bag 2 that can be used on an automatic filling and packaging machine.
When folding the packaging sheet to form the packaging bag 2, at least one ofthesideparts4a and 4bjoined by heat-sealing to form the back sealed part 5 is provided with the roughened tear part 10. Preferably, both the side parts are provided with the roughened tear parts, respectively.
The side parts 4a and 4b are bent and are joined such that the inner surfacesthereofarecontiguousto form atubular structure. Theroughenedtearparts sheet extend along the bends of the side parts 4a and 4b.
Then, a continuous fastening device 3 with the male fastening member 8 and the female fastening member 9 engaged is inserted in the tubular structure such that the base part 8a of the male fastening member 8 is disposed on a part of the inner surface of the tubular structure on one side of the joint of the side parts 4a and 4b, and the base part 9a of the female fastening member 9 of the fastening device is disposed on a part of the inner surface of the tubular structure on the other side of the joint of the side parts 4a and 4b.
Thus, the male fastening member 8 and the female fastening member 9 are disposed on the opposite sides of the joint of the side parts 4a and 4b, respectively.
Then, the joined side parts 4a and 4b of the tubular structure are bonded together by heat-sealing and, at the same time, the respective base parts 8a and 9a of the male fastening member 8andthe female fastening member 9 are welded or bonded to the inner surfaceofthetubular structure. Thus, the tubular structure having open opposite ends and provided with the fastening device 3 attached to its inner surface is formed.
Then, one end of the tubular structure fixedly provided with the fastening device 3 and having the opposite open ends is heat-sealed to form the lower heat-sealed part 7. Thus, the packaging bag 2 having an open upper end is obtained.
An article is filled through the open upper end in the packaging bag 2, and then the upper end of the packaging bag 2 is heat-sealed to form the upper heat-sealed part 6. The packaging bag 2 filled with the article is cut along the upper heat-sealed part 6 to separate the packaging bag 2 from the packaging sheet.
Figs. 3 and 4 show a fastener bag lain a second embodiment according to the present invention. The fastener bag la shown in Figs. 3 and 4 differs from the fastener bag 1 shown in Figs. 1 and 2 in that the fastener bag la is provided with a tear strip 11 as a tear-facilitating means combined with a fastening device 3a instead of the roughened tear parts 10 of the fastener bag 1 shown in Figs. 1 and 2.
Referring to Fig. 4, the fastening device 3a includes a separate male fastening member 8 and a separate female fastening member 9. The tear strip 11 isattachedtemporarily to the inner surface of the base part of the male fastening member 8 by welding or bonding. The tear strip 11 may be attached temporarily to the outer surface of the base part 8a of the male fastening member 8. When the tear strip 11 is attached to the outer surface of the base part 8a, the respective positions of the male fastening member 8 and the female fastening member 9 on a packaging bag 2 are interchanged.
Although it is preferable that the tear strip 11 is made of a polymer different from that forming the packaging sheet and is, for example, a nylon monofilament or a metal wire, the tear strip 11 may be a cotton yarn or a silk yarn, provided that the tear strip 11 has a strength sufficient to tear both the base part 8aof themale fasteningmember 8 and the packaging sheet.
The male fastening member 8 and the female fastening member 9 of the fastening device 3a are formed by continuously extruding an olefin resin by an extrusion molding machine.
The tear strip 11 can be combined with the male fastening member 8 or the female fastening member 9 by forming the tear strip 11 simultaneously with the male fastening member 8 or the female fastening member 9 by coextrusion.
As shown in Fig. 3, the fastening device 3a and the tear strip 11 are extended continuously between the upper and the lower end of the fastener bag la. A triangular pull tab 13 is formed by cutting lines 12 in a lower heat-sealed part 7 at a position corresponding to the tear strip 11 and an end of the tear strip 11 is connected to the pull tab 13.
When opening the fastener bag la, the lower heat-sealed part 7 is cut along the cutting lines 12 to separate the pull tab 13 from the lower heat-sealed part 7, and then the pull tab 13 is held between fingers and is pulled away from the fastener bag la. Consequently, the tear strip 11 connected to the pull tab 13 cuts both the base part 8a of the male fastening member 8 and the packaging sheet to open the fastener bag la.
Whereas the fastener bag la shown in Fig. 4 has the butt seam type packaging bag 2a, a fastener bag lb shown in Fig.
has an envelope seam type packaging bag 2b.
The envelope seam type packaging bag 2b has an envelope seam 5a formed by superposing and joining together side parts of a packaging sheet. Laminated films suitable as the packaging sheet for forming the packaging bag 2b are a laminated film formed by laminating a 20 to 60 Rm thick nonoriented polypropylene film, a 20 to 50 Rm thick biaxially oriented polypropylene film, and a 20 to 60 Rm thick nonoriented polypropylene film by a laminating process using a 2 to 3 [tm thick dry bonding layer, a laminated film formed by laminating a 30 to 50 Rm thick straight-chain low-density polyethylene film, a 9 to 25 [tm thick polyester film, and a 25 to 120 [tm thick straight-chain, low-density polyethylene film by a laminating process using a 2 to 3 Rm thick dry bonding layer, and a laminated film formed by laminating a 25 to Rm thick polyethylene film, a 9 to 20 Rm thick biaxial oriented nylon film, and a 25 to 120 Vm thick polyethylene film by a laminating process using a 2 to 3 [m thick dry bonding layer.
An extruded polyethylene layer may be used as a bonding layer instead of the dry bonding layer.
A fastening device 3c included in a fastener bag ic shown in Fig. 6 is different in construction from that included in the fastener bag lb shown in Fig. 5. The fastening device ic shown in Fig. 6 is a molding integrally having a male fastening member 8, a female fastening member 9, and a connecting part 14 interconnecting the male fastening member 8 and the female fastening member 9. A tear strip 11, i.e., a tear-facilitating means, is attached to the inner surface of the connecting part 14.
The fastening device 3c and the tear strip 11 of the fastener bag ic, similarly to the fastening device 3a and the tear strip 11 shown in Fig. 2, are extended between the upper and the lower end of a packaging bag 2, a triangular pull tab is formed by cutting lines in a lower heat-sealed part and an end of the tear strip 11 is connected to the pull tab.
Afastenerbag Id shown in Fig. 7differsfromthefastener bag 1 shown in Fig. 2 in that a fastening device 3 is extended on the inner surface of a packaging bag 2 along a butt seam on one side of the butt seam 5, a ridge 12 extending along the fastening device 3 is formed in a part of the packaging bag 2 between a base part 8a of a mal fastening member 8, and a base part 9a of a female fastening member 9, and roughened tear parts 10a, tear-facilitating means, are formed at the root of the ridge 12.
A fastener bag le shown in Fig. 8 is not provided with any part corresponding to the ridge 12 of the packaging bag 2 of the fastener bag id shown in Fig. 7, and is provided with a fastening device 3a instead of the fastening device 3. Inthe fastener bag le shown in Fig. 8, apartof the packaging bag 2 between a base part 8a of a male fastening member 8, and a base part 9a of a female fastening member 9 is cut with a tear strip 11. Although the fastener bag le shown in Fig.
8 employs the tear strip 11 as a cutting means for cutting the packaging bag 2, the tear strip 11 may be omitted, and a tape may be welded or bonded to a part of the inner surface of the packaging bag 2 between the base part 8a of the male fastening member, and the base part 9a of the female fastening member 9 or a narrow roughened tear part may be formed near the respective base parts 8a and 9a of the male fastening member 8 and the female fastening member 9, and a cut tape or the narrow roughened tear part may be torn to open the packaging bag 2.
The cut tape is formed from, for example, a laminated film formed by sandwiching a 12 [tm thick polyester film between 30 [m thick polyethylene films. The cut tape is formed in a width slightly smaller than the distance between the respective base parts 8a and 9a of the male fastening member 8 and the female fastening member 9 so that the cut tape is guided by the base part 8a of the male fastening member 8 or the base part 9a of the female fastening member 9 when cutting the packaging bag 2 with the cut tape.
Whereas the fastener bag le shown in Fig. 8 has the butt seam type packaging bag 2, a fastener bag If shown in Fig.
9 has an envelope seam type packaging bag 2b.
A fastener bag Ig shown in Fig. 10 is provided with a cut tape 100 as a tear-facilitating means instead of the roughened tear part 10 of the fastener bag 1 shown in Fig.
2.
The cut tape 100 of the fastener bag Ig is attached to a part of the inner surface of a packaging bag 2b between a base part 8a of a male fastening member 8 and a back sealed part 5 formed in the packaging bag 2g. The cut tape 100 serves as a tear-facilitating means for opening the packaging bag 2g. Two longitudinal cutting lines may be formed in the cut tape 100, and a part between the two cutting lines of the cut tape may be used as a tear-facilitating means.
The cut tape 100 has a width in the range of 3 to mm. Thecuttape 100 is extendedcontinuouslybetween anupper heat-sealed part 6 and a lower heat-sealed part 7 of the packaging bag ig on a part of the packaging bag 2g between the male fastening member 8 and the female fastening member 9. A triangular pull tab is formed in at least either the upper heat-sealed part 6 or the lower heat-sealed part 7 by cutting lines. The cutting line separates a part of the heat-sealed part to form the pull tab integrally with the cut tape 100 at one end of the cut tape 100.
As shown in Fig. 11, the cut tape 100 is a three-layer structure consisting of a straight-chain low-density polyethylene layer 101, a polyester layer 102, and an easy-to-peel layer 103. The easy-to-peel layer 103 is formed of a chlorinated polyethylene or an EVA, or is a hot-melt layer. The easy-to-peel layer 103 has a peeling strength on the order of 200 g/cm.
A packaging sheet forming the packaging bag 2g has a breaking strength higher than the peeling strength of the easy-to-peel layer 103 of the cut tape 100.
Thecuttapel 100maybeafour-layerstructureconsisting of a low-density polyethylene layer, a polyester layer, a low-density polyethylene layer and an easy-to-peel layer, a four-layer structure consisting of a straight-chain low-density polyethylene layer, a polyester layer, a straight-chain low-density polyethylene layer and an easy-to-peel layer, a four-layer structure consisting of a very-low-density polyethylene layer, a polyester layer, a very-low-densitypolyethylene layerandaneasy-to-peellayer or a four-layer structure consisting of a cast polypropylene layer, a polyester layer, a cast polypropylene layer and an easy-to-peel layer.
A method of manufacturing the fastener bag 1g will be described.
A continuous laminated film is cut in a packaging sheet of a length equal to twice the sum of the width of the packaging bag 2g shown in Fig. 10 and the length of the back sealed part 5 of the packaging bag 2g to form the packaging bag 2g that can be used on an automatic filling and packaging machine.
Side parts 4a and 4b are bent and are joined such that the inner surfaces thereof are contiguous to form a tubular structure. Then, a continuous fastening device 3 with the male fastening member 8 and the female fastening member 9 engaged and the cut tape 100 are inserted in the tubular structure.
The male fastening member 8 and the female fastening member 9 are disposed on the opposite sides, respectively, of the joint of the side parts 4a and 4b. The cut tape 100 is extended continuously between the upper and the lower end of the tubular structure on a part between.the base part 8a of the male fastening member 8 and the base part 9a of the female fastening member 9 of the tubular structure.
Then, the joined side parts 4a and 4b of the tubular structure are bonded together by heat-sealing to form the back sealed part 5 and, at the same time, the respective base parts 8a and 9a of the male fastening member 8 and the female fastening member 9 are welded or bonded to the inner surface of the tubular structure. Thus, the tubular structure having open opposite ends and provided with the fastening device 3 and the cut tape 100 attached to its inner surface is formed.
The easy-to-peel layer 103 of the cut tape 100 is bonded to the base part 9a of the female fastening member 9.
Then, one end of the tubular structure fixedly provided with the fastening device 3 and the cut tape 100, and having the opposite open ends is heat-sealed to form a lower heat-sealed part 7. Thus, the packaging bag 2g having an open upper end is obtained. An article is filled through the open upper end in the packaging bag 2g, and then the upper end of the packaging bag 2g is heat-sealed to form the upper heat-sealed part 6. The packaging bag 2g filled with the article is cut along the upper heat-sealed part 6 to separate the packaging bag 2g from the packaging sheet.
When opening the fastener bag Ig to take out the contents, the upper heat-sealed part 6 or the lower heat-sealed part 7 is cut along the cutting lines to form a tab separated from the heat-sealed part.
Then, the tab is held between fingers and is pulled away from the surface of the fastener bag Ig to cut a part of the packaging bag 2g between the respective base parts 8a and 9a of the male fastening member 8 and the female fastening member 9 with the cut tape 100. Consequently, the fastener bag Ig is opened and the contents can be taken out of the fastener bag ig through an opening formed by cutting the packaging bag 2g with the cutting tape 100.
The remnant contents remaining in the fastener bag ig after taking out some of the contents can be sealed in the fastener bag Ig by engaging the male fastening member 8 and the female fastening member 9.
A fastener bag lh in a preferred embodiment of the present invention shown in Fig. 12 has a packaging bag 2h identical with the packaging bag 2g of the fastener bag Ig shown in Fig. 10. The fastener bag lh differs in the position of its fastening device 3a from the fastener bag Ig shown in Fig.
In the fastener bag lh, both the male fastening member 8 and the female fastening member 9 of the fastening device 3a are disposed on the inner surface of the packaging bag 2g shown in Fig. 10 on one side of the back sealed part A part of the fastener bag lh apart from the back sealed part 5 is cut to open the fastener bag lh.
A jip bag lj in a preferred embodiment according to the present invention shown in Fig. 13 is identical in the position of its fastening device 3 with the fastener bag Ig shown in Fig. 10. Where as the packaging bag 2g of the fastener bag ig is of a butt seam type, the packaging bag 2j of the fastener bag lj is of an envelope seam type.
INDUSTRIAL APPLICABILITY The fastener bag according to the present invention has the packaging bag formed by processing a single packaging sheet, the fastening device is disposed on one of the walls of the packaging bag, and the tear-facilitating means is placed on the inner surface of the packaging bag or the fastening device. Thus, the fastener bag can be opened and reclosed and can be used on an ordinary automatic filling and packaging machine without requiring any special devices.
The fastener bag according to the present invention has the packaging bag formed by processing a single packaging sheet, the fastening device is disposed on one of the walls of the packaging bag, and the cut tape is attached to the inner surface of the packaging bag. Thus, the fastener bag can be opened and reclosed and can be used on an ordinary automatic filling and packaging machine without requiring any special devices.
Claims (15)
1. A fastener bag including a packaging bag having a butt seam formed by Z folding one sheet of packaging sheet, heat-sealing side parts formed in the butt Sseam and opposite open ends to be heat-sealed positioned at both ends of heat- sealing side parts; and a fastening device attached to the inner surface of the packaging bag; wherein the fastening device includes separate male and female fastening members, the male fastening member is disposed apart from the butt cseam and on one side of the heat-sealed butt seam of the packaging bag, the Sfemale fastening member is disposed apart from the butt seam and on the other side of the heat-sealed butt seam of the packaging bag so as to be engage with the male fastening member, and a tear-facilitating means is extended between the male and the female fastening member and one open end of the opposite open ends is heat-sealed after an article is filled in the packaging bag, and other open end of the opposite open ends is heat-sealed before the article is filled in the packaging bag.
2. The fastener bag according to claim 1, wherein the tear-facilitating means is a narrow easy-to tear part formed near the heat-sealed butt seam.
3. The fastener bag according to claim 1, wherein the tear-facilitating means is a linear member attached to the inner or the outer surface of a base part of the male fastening member.
4. The fastener bag according to claim 1, wherein the tear-facilitating means is a linear member attached to the inner or the outer surface of a base part of the female fastening member.
A fastener bag including: a packaging bag having a butt seam formed by folding one sheet of packaging sheet, heat-sealing side parts formed in the butt seam and opposite open ends to be heat-sealed positioned at both ends of heat- sealing side parts; and a fastening device attached to a part of the inner surface of the packaging bag on one side of the heat-sealed butt seam; wherein the fastening device includes separate male and female fastening members, the male and the female fastening member are disposed with a space therebetween so as to be engaged, and a tear-facilitating means is interposed between the male and 0 the female fastening member and one open end of the opposite open ends is Z heat-sealed after an article is filled in the packaging bag, and other open end of 0 5 the opposite open ends is heat-sealed before the article is filled in the packaging bag.
6. The fastener bag according to claim 5, wherein the tear-facilitating means cis a narrow easy-to tear part formed in the packaging bag.
7. The fastener bag according to claim 5, wherein the tear-facilitating means is a linear member attached to the inner or the outer surface of a base part of the male fastening member.
8. The fastener bag according to claim 5, wherein the tear-facilitating means is a linear member attached to the inner or the outer surface of a base part of the female fastening member.
9. The fastener bag according to claim 5, wherein the tear-facilitating means is a narrow tape attached to the inner surface of the packaging bag.
The fastener bag according to claim 9, wherein the narrow tape is attached to the inner surface of the packaging bag by welding, bonding or adhesive bonding.
11. A fastener bag including: a packaging bag having a butt seam formed by folding one sheet of packaging sheet, heat-sealing side parts formed in the butt seam and opposite open ends to be heat-sealed positioned at both ends of heat- sealing side parts; and a fastening device attached to the inner surface of the packaging bag; wherein the fastening device is an integral molding including a male fastening member, a female fastening member and a connecting member, and a tear-facilitating means is combined with the connecting member and one open end of the opposite open ends is heat-sealed after an article is filled in the O packaging bag, and other open end of the opposite open ends is heat-sealed C before the article is filled in the packaging bag. O Z
12. The fastener bag according to claim 11, wherein the tear-facilitating means 0 is a linear member attached to the inner surface of the connecting part. S 5
13. A fastener bag including: a packaging bag having a butt seam formed by folding one sheet of packaging sheet, heat-sealing side parts formed in the butt seam and opposite open ends to be heat-sealed positioned at both ends of heat- sealing side parts; and a fastening device attached to the inner surface of the packaging bag; wherein the fastening device includes separate male and female fastening members, the male fastening member is disposed on one side of the heat-sealed butt seam of the packaging bag, the female fastening member is disposed on the other side of the heat-sealed butt seam so as to engage with the male fastening member, and a cut tape is extended from one to the other end of the packaging bag on a part of the inner surface of the packaging bag between the male and the female fastening member, and is attached to the inner surface of the packaging bag and one open end of the opposite open ends is heat-sealed after an article is filled in the packaging bag, and other open end of the opposite open ends is heat-sealed before the article is filled in the packaging bag.
14. A fastener bag including: a packaging bag having a butt seam formed by folding one sheet of packaging sheet, heat-sealing side parts formed in the butt seam and opposite open ends to be heat-sealed positioned at both ends of heat- sealing side parts; and a fastening device attached to a part of the inner surface of the packaging bag on one side of a heat-sealed butt seam; wherein the fastening device includes separate male and female fastening members, the male and the female fastening member are disposed with a space therebetween so as to be engaged, and a cut tape is extended from one to the other end of the packaging bag on a part of the inner surface of the packaging bag between the male and the female fastening member, and is attached to the inner surface of the packaging bag and one open end of the opposite open ends is heat-sealed 19 O after an article is filled in the packaging bag, and other open end of the opposite cl open ends is heat-sealed before the article is filled in the packaging bag. 0 Z
15. A fastener bag substantially as hereinbefore described with respect to any one of the embodiments shown in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2000/006363 WO2002022452A1 (en) | 1999-06-14 | 2000-09-18 | Fastener bag and fastener device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2000273153A1 AU2000273153A1 (en) | 2002-06-13 |
| AU2000273153B2 true AU2000273153B2 (en) | 2006-12-14 |
Family
ID=11736464
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2000273153A Ceased AU2000273153B2 (en) | 2000-09-18 | 2000-09-18 | Fastener bag and fastener device |
| AU7315300A Pending AU7315300A (en) | 2000-09-18 | 2000-09-18 | Fastener bag and fastener device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU7315300A Pending AU7315300A (en) | 2000-09-18 | 2000-09-18 | Fastener bag and fastener device |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7476030B1 (en) |
| EP (1) | EP1325872B1 (en) |
| KR (1) | KR100759148B1 (en) |
| CN (1) | CN1263656C (en) |
| AU (2) | AU2000273153B2 (en) |
| DE (1) | DE60037144T2 (en) |
| WO (1) | WO2002022452A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1607340B1 (en) * | 2003-03-17 | 2010-03-03 | Hosokawa Yoko Co., Ltd. | Fastener bag |
| US20070116388A1 (en) * | 2003-08-04 | 2007-05-24 | Raizo Kuge | Fastener bag and fastening device |
| JP4526884B2 (en) | 2004-06-28 | 2010-08-18 | 出光ユニテック株式会社 | Bag with zipper tape |
| EP2851312B1 (en) | 2004-12-07 | 2016-06-29 | Idemitsu Unitech Co., Ltd. | Zipper and zipper-equipped bag |
| EP1757533A1 (en) * | 2005-08-26 | 2007-02-28 | Amcor Flexibles A/S | Easy-to-open packaging comprising a laminate and production method of said laminate |
| JP4874742B2 (en) * | 2006-08-21 | 2012-02-15 | 出光ユニテック株式会社 | CHUCK TAPE WITH CUT TAPE, ITS MANUFACTURING METHOD, AND PACKAGING BAG WITH CHUCK TAPE |
| JP2010284928A (en) * | 2009-06-12 | 2010-12-24 | Idemitsu Unitech Co Ltd | Method and device for manufacturing packaging bag with zipper tape |
| US20120314978A1 (en) * | 2010-02-12 | 2012-12-13 | Idemitsu Unitech Co., Ltd. | Zipper tape and packing bag with zipper tape |
| FR2966442B1 (en) * | 2010-10-20 | 2014-02-07 | S2F Flexico | CLOSURE DEVICE AND SACHET USING THE SAME |
| CN104670656A (en) * | 2013-12-02 | 2015-06-03 | 大连竹菱包装工业有限公司 | Zipper easy to tear and packaging bag thereof |
| JP5651850B1 (en) * | 2013-12-26 | 2015-01-14 | 日本竹菱株式会社 | Zipper tape with cut tape, and packaging bag provided with zipper tape with cut tape |
| CN108024600B (en) * | 2015-09-14 | 2023-12-01 | 出光统一科技株式会社 | Bag body with fastener tape, bag body, method for manufacturing bag body, and device for manufacturing bag body |
| JPWO2021149807A1 (en) * | 2020-01-24 | 2021-07-29 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04253644A (en) * | 1990-10-09 | 1992-09-09 | Illinois Tool Works Inc <Itw> | Easily openable flexible container, manu- facturing method therefor, and sealing film for opening thereof |
| JPH08133303A (en) * | 1994-11-11 | 1996-05-28 | Ishikawa Kk | Paper bag |
| JPH11124150A (en) * | 1997-10-22 | 1999-05-11 | Nk Kogyo Kk | Packaging bag |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3532571A (en) * | 1967-06-28 | 1970-10-06 | Steven Ausnit | Method and apparatus for forming continuous plastic tubing with separable pressure reclosable fastener strips attached to the surface thereof |
| US3780781A (en) * | 1971-09-07 | 1973-12-25 | Seisan Nipponsha Kk | Openable bag |
| SE423080B (en) * | 1978-03-14 | 1982-04-13 | Salve Sa | RELEASABLE PACKAGING FOR A STACK OF WASHING OR OTHER MOISTURE MATERIAL |
| US4528224A (en) * | 1982-09-10 | 1985-07-09 | Minigrip, Inc. | Method of making multiple reclosable bag material |
| US4570820A (en) * | 1983-01-18 | 1986-02-18 | Creative Products Resource Associates, Ltd. | Resealable dispensing container for folded towels |
| JPS63147451U (en) | 1987-03-19 | 1988-09-28 | ||
| US4876842A (en) * | 1988-01-15 | 1989-10-31 | Minigrip, Inc. | Method of and apparatus for packaging product masses in a form, fill and seal machine |
| US5023122A (en) * | 1988-01-29 | 1991-06-11 | Minigrip, Inc. | Easy open bag structure |
| EP0345930B1 (en) * | 1988-05-16 | 1992-04-01 | Kabushiki Kaisha Hosokawa Yoko | Closable pouch |
| JP2749886B2 (en) * | 1989-07-21 | 1998-05-13 | ▲しょう▼ 小原 | Fastener bag and manufacturing method thereof |
| US5022530A (en) * | 1989-10-13 | 1991-06-11 | The Dow Chemical Company | Modified zipper elements for easy open containers |
| US5215380A (en) * | 1990-10-19 | 1993-06-01 | Reynolds Consumer Products, Inc. | Reclosable package with tear strip |
| US5127208A (en) * | 1990-10-19 | 1992-07-07 | Reynolds Consumer Products Inc. | Method and apparatus for forming a reclosable package |
| US5186543A (en) * | 1991-03-04 | 1993-02-16 | Illinois Tool Works Inc. | Tear-open bag having guide strips |
| CA2070937C (en) * | 1991-08-09 | 1998-09-15 | Paul Tilman | Reclosable plastic bags and method of making same utilizing discontinuous zipper profile disposed along a continuous carrier strip |
| US5782733A (en) * | 1992-10-26 | 1998-07-21 | Innoflex Incorporated | Zippered film and bag |
| JPH06156510A (en) * | 1992-11-13 | 1994-06-03 | Houseki Planning:Kk | Hell-unsealing zipper bag |
| JPH0680652U (en) | 1993-04-30 | 1994-11-15 | 三和紙工株式会社 | Opening sealing structure of powder bag |
| US5412924A (en) * | 1994-04-11 | 1995-05-09 | Minigrip, Inc. | Method of making reclosable plastic bags on a form, fill and seal machine |
| US5609420A (en) * | 1994-06-01 | 1997-03-11 | Minigrip, Inc. | Reclosable bag closure with tear containing strips |
| JPH1029644A (en) | 1996-07-15 | 1998-02-03 | Dainippon Printing Co Ltd | Gusset-type packaging bag with fastener |
| US6224262B1 (en) * | 1999-03-08 | 2001-05-01 | Innoflex Incorporated | Bag with perforated opening and reinforcing patch |
| US6481183B1 (en) * | 2000-04-21 | 2002-11-19 | Cmd Corporation | Vertical form fill seal bag with recloseable seal and method of making thereof |
| US6918234B2 (en) * | 2002-02-21 | 2005-07-19 | Pactiv Corporation | Process for attaching slider-operated closure on form-fill-seal packaging machinery |
| US7396163B2 (en) * | 2002-12-14 | 2008-07-08 | Mcgregor James Ray | Paper and plastic bags flexible packages and other containers with re-closable device and method of making the same |
-
2000
- 2000-09-18 US US10/380,677 patent/US7476030B1/en not_active Expired - Fee Related
- 2000-09-18 AU AU2000273153A patent/AU2000273153B2/en not_active Ceased
- 2000-09-18 AU AU7315300A patent/AU7315300A/en active Pending
- 2000-09-18 CN CNB008200238A patent/CN1263656C/en not_active Expired - Fee Related
- 2000-09-18 DE DE60037144T patent/DE60037144T2/en not_active Expired - Lifetime
- 2000-09-18 KR KR1020037003938A patent/KR100759148B1/en not_active IP Right Cessation
- 2000-09-18 WO PCT/JP2000/006363 patent/WO2002022452A1/en active IP Right Grant
- 2000-09-18 EP EP00961065A patent/EP1325872B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04253644A (en) * | 1990-10-09 | 1992-09-09 | Illinois Tool Works Inc <Itw> | Easily openable flexible container, manu- facturing method therefor, and sealing film for opening thereof |
| JPH08133303A (en) * | 1994-11-11 | 1996-05-28 | Ishikawa Kk | Paper bag |
| JPH11124150A (en) * | 1997-10-22 | 1999-05-11 | Nk Kogyo Kk | Packaging bag |
Also Published As
| Publication number | Publication date |
|---|---|
| AU7315300A (en) | 2002-03-26 |
| WO2002022452A1 (en) | 2002-03-21 |
| US7476030B1 (en) | 2009-01-13 |
| EP1325872A4 (en) | 2006-06-07 |
| EP1325872A1 (en) | 2003-07-09 |
| KR20030036803A (en) | 2003-05-09 |
| KR100759148B1 (en) | 2007-09-14 |
| CN1263656C (en) | 2006-07-12 |
| CN1461277A (en) | 2003-12-10 |
| EP1325872B1 (en) | 2007-11-14 |
| DE60037144D1 (en) | 2007-12-27 |
| DE60037144T2 (en) | 2008-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070116388A1 (en) | Fastener bag and fastening device | |
| KR101175960B1 (en) | Bag with chuck tape | |
| JP4908228B2 (en) | Chuck and bag with chuck | |
| US4848928A (en) | Package with reclosable fin and method | |
| JP4386731B2 (en) | Easy-open packaging bag | |
| JP3872564B2 (en) | Manufacturing method for side gusset bags | |
| JP5032945B2 (en) | Cut tape and packaging bag with cut tape | |
| EP2055643A1 (en) | Chuck tape with cut tape, its manufacturing method, and packaging bag with chuck tape | |
| AU2000273153B2 (en) | Fastener bag and fastener device | |
| JP2006199334A (en) | Resealable bag | |
| JP2002104440A (en) | Fastener bag | |
| JP4972667B2 (en) | Free-standing bag with chuck | |
| JPH0633092B2 (en) | Bag with articulator | |
| JP3759683B2 (en) | Zipper bag | |
| JP5450956B2 (en) | Packaging bag, manufacturing apparatus thereof, and manufacturing method of packaging bag | |
| JP6113339B1 (en) | Tape and bag | |
| JP3953582B2 (en) | Easy-open packaging bag and manufacturing method thereof | |
| JP4749568B2 (en) | Easy-open packaging bag | |
| JP3761745B2 (en) | Zipper bag | |
| JP6495362B2 (en) | Tape and bag | |
| WO2023002925A1 (en) | Container, method for manufacturing container, device for manufacturing container, seal bar, and film assembly | |
| JP3020834B2 (en) | Plastic container with zipper | |
| JP2004315064A (en) | Packaging bag | |
| JP2002337890A (en) | Fastener bag | |
| JP2001130592A (en) | Easy-to-unseal packaging bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC1 | Assignment before grant (sect. 113) |
Owner name: KABUSHIKI KAISHA HOSOKAWA YOKO; IDEMITSU PETROCHEM Free format text: FORMER APPLICANT(S): IDEMITSU PETROCHEMICAL CO., LTD; YUGEN KAISHA OBARA GIKEN ; KABUSHIKI KAISHA HOSOKAWA YOKO |
|
| PC1 | Assignment before grant (sect. 113) |
Owner name: KABUSHIKI KAISHA HOSOKAWA YOKO; IDEMITSU UNITECH C Free format text: FORMER APPLICANT(S): IDEMITSU UNITECH CO., LTD.; IDEMITSU PETROCHEMICAL CO., LTD; KABUSHIKI KAISHA HOSOKAWA YOKO |
|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |